The word 'security' is a broad, vague generality whose contours should not be invoked to abrogate the fundamental law embodied in the First Amendment… - Hugo Black

The 'establishment of religion' clause of the First Amendment means at least this: Neither a state nor the Federal Government can set up a church. Neither can pass laws which aid one religion, aid all religions or prefer one religion over another. Neither can force nor influence a person to go to or to remain away from church against his will or force him to profess a belief or disbelief in any religion. No person can be punished for entertaining or professing religious beliefs or disbeliefs, for church attendance or non-attendance. No tax in any amount, large or small, can be levied to support any religious activities or institutions, whatever they may be called, or whatever form they may adopt to teach or practice religion. Neither a state nor the Federal Government can, openly or secretly, participate in the affairs of any religious organizations or groups and vice versa. In the words of Jefferson, the clause against establishment of religion by law was intended to erect 'a wall of separation between Church and State'.

It is my belief that there are "absolutes" in our Bill of Rights, and that they were put there on purpose by men who knew what the words meant and meant their prohibitions to be "absolutes."

It seems self-evident that all speech criticizing government rulers and challenging current beliefs may be dangerous to the status quo. With full knowledge of this danger, the Framers rested our First Amendment on the premise that the slightest suppression of thought, speech, press, or public assembly is still more dangerous. This means that individuals are guaranteed an undiluted and unequivocal right to express themselves on questions of current public interest. It means that Americans discuss such questions as of right and not on sufferance of legislatures, courts or any other governmental agencies. It means that courts are without power to appraise and penalize utterances upon their notion that these utterances are dangerous. In my view, this uncompromising interpretation of the Bill of Rights is the one that must prevail if its freedoms are to be saved. Tyrannical totalitarian governments cannot safely allow their people to speak with complete freedom. I believe with the Framers that our free Government can.